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科学史评话最新专辑

航天史:28.命悬一线

30 May 2020

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双子座飞船本来就很窄,坐进去是很不舒服的。好不容易等到火箭点火,主发动机刚刚工作了1.5秒就突然刹车停止了。这可把两个宇航员给吓坏了,怎么关键时刻掉链子啊?宇航员的手都伸到了弹射拉环上,双子座飞船是靠弹射座椅救生的。但是从低压纯氧环境,突然弹出去,进入1个大气压的正常空气环境,人受得了受不了呢?他俩不知道。如果是火箭已经起飞,发动机突然关机,在一屁股坐回发射台,那么就是一场涅杰林式的悲剧。整个火箭肯定要倒下来,肯定要炸掉。指令长沃里的脑子在一瞬间就要决定拉还是不拉。最后,他决定不拉,因为他没感觉到火箭在上升,应该是还在原地没动呢。果然,发动机开机时间太短了,火箭被发射架抱住,还没来得及动窝,暂时肯定是没有倒下去的风险,两个人算是赌对了……

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